Communications: radio wave antennas – Antennas – High frequency type loops
Patent
1992-12-15
1995-08-15
Hajec, Donald
Communications: radio wave antennas
Antennas
High frequency type loops
343744, 343866, H01Q 1112
Patent
active
054423694
ABSTRACT:
An antenna has windings that are contrawound in segments on a toroid form and that have opposed currents on selected segments. The windings may have a helical pattern, poloidal peripheral pattern or may be constructed from a slotted conductor on the toroid. Poloidal loop winds have a toroid hub on a toroid that has two plates that provides a capacitive feed to the loops, which are selectively connected to one of the plates.
REFERENCES:
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"Time Varying Electric and Magnetic Fields" by J. M. Ham, G. R. Slemon from Scientific Basis of Electrical Engineering; John Wiley & Sons, N.Y. 1961 pp. 302-305.
Reference Data for Radio Engineers; 7th Ed. E. C. Jordan Ed.; Howard W. Sams pp. 6-13-6-14.
"Wide Frequency-Range Tuned Helical Antennas and Circuits" by A. G. Kandoian, W. Sichak; Fed. Telecommunication Laboratories, Inc., Nutley, N.J. pp. 42-47.
"Modified Contra-Wound Helix Circuits for High-Power Traveling-Wave Tubes" by C. K. Birdsall, T. E. Everhart; from IRE Transactions on Electron Devices pp. 190-205.
"Time Harmonic Electromagnetic Field" by R. F. Harrington, McGraw Hill, N.Y., 1961; pp. 106-111.
Smith James E.
Van Voorhies Kurt L.
Hajec Donald
Ho Tan
Houser Kirk D.
Silverman Arnold B.
West Virginia University
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